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gadget: Add GtkCssCustomGadget

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The thing you use when you want to custom-do everything.
This commit is contained in:
Benjamin Otte
2015-09-09 19:15:01 +02:00
committed by Matthias Clasen
parent 6eafe00d8f
commit e09eb4fc9f
3 changed files with 271 additions and 1 deletions
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2
gtk/Makefile.am
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@ -386,6 +386,7 @@ gtk_private_h_sources = \
gtkcssbordervalueprivate.h \
gtkcsscolorvalueprivate.h \
gtkcsscornervalueprivate.h \
gtkcsscustomgadgetprivate.h \
gtkcsscustompropertyprivate.h \
gtkcsseasevalueprivate.h \
gtkcssenginevalueprivate.h \
@ -640,6 +641,7 @@ gtk_base_c_sources = \
gtkcssbordervalue.c \
gtkcsscolorvalue.c \
gtkcsscornervalue.c \
gtkcsscustomgadget.c \
gtkcsscustomproperty.c \
gtkcsseasevalue.c \
gtkcssenumvalue.c \

180
gtk/gtkcsscustomgadget.c Normal file
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@ -0,0 +1,180 @@
/*
* Copyright © 2015 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcsscustomgadgetprivate.h"
#include "gtkcssnodeprivate.h"
typedef struct _GtkCssCustomGadgetPrivate GtkCssCustomGadgetPrivate;
struct _GtkCssCustomGadgetPrivate {
GtkCssPreferredSizeFunc preferred_size_func;
GtkCssAllocateFunc allocate_func;
GtkCssDrawFunc draw_func;
gpointer data;
GDestroyNotify destroy_func;
};
G_DEFINE_TYPE_WITH_CODE (GtkCssCustomGadget, gtk_css_custom_gadget, GTK_TYPE_CSS_GADGET,
G_ADD_PRIVATE (GtkCssCustomGadget))
static void
gtk_css_custom_gadget_get_preferred_size (GtkCssGadget *gadget,
GtkOrientation orientation,
gint for_size,
gint *minimum,
gint *natural,
gint *minimum_baseline,
gint *natural_baseline)
{
GtkCssCustomGadgetPrivate *priv = gtk_css_custom_gadget_get_instance_private (GTK_CSS_CUSTOM_GADGET (gadget));
if (priv->preferred_size_func)
return priv->preferred_size_func (gadget, orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline,
priv->data);
else
return GTK_CSS_GADGET_CLASS (gtk_css_custom_gadget_parent_class)->get_preferred_size (gadget, orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
}
static void
gtk_css_custom_gadget_allocate (GtkCssGadget *gadget,
const GtkAllocation *allocation,
int baseline,
GtkAllocation *out_clip)
{
GtkCssCustomGadgetPrivate *priv = gtk_css_custom_gadget_get_instance_private (GTK_CSS_CUSTOM_GADGET (gadget));
if (priv->allocate_func)
return priv->allocate_func (gadget, allocation, baseline, out_clip, priv->data);
else
return GTK_CSS_GADGET_CLASS (gtk_css_custom_gadget_parent_class)->allocate (gadget, allocation, baseline, out_clip);
}
static gboolean
gtk_css_custom_gadget_draw (GtkCssGadget *gadget,
cairo_t *cr,
int x,
int y,
int width,
int height)
{
GtkCssCustomGadgetPrivate *priv = gtk_css_custom_gadget_get_instance_private (GTK_CSS_CUSTOM_GADGET (gadget));
if (priv->draw_func)
return priv->draw_func (gadget, cr, x, y, width, height, priv->data);
else
return GTK_CSS_GADGET_CLASS (gtk_css_custom_gadget_parent_class)->draw (gadget, cr, x, y, width, height);
}
static void
gtk_css_custom_gadget_finalize (GObject *object)
{
GtkCssCustomGadgetPrivate *priv = gtk_css_custom_gadget_get_instance_private (GTK_CSS_CUSTOM_GADGET (object));
if (priv->destroy_func)
priv->destroy_func (priv->data);
G_OBJECT_CLASS (gtk_css_custom_gadget_parent_class)->finalize (object);
}
static void
gtk_css_custom_gadget_class_init (GtkCssCustomGadgetClass *klass)
{
GtkCssGadgetClass *gadget_class = GTK_CSS_GADGET_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_css_custom_gadget_finalize;
gadget_class->get_preferred_size = gtk_css_custom_gadget_get_preferred_size;
gadget_class->allocate = gtk_css_custom_gadget_allocate;
gadget_class->draw = gtk_css_custom_gadget_draw;
}
static void
gtk_css_custom_gadget_init (GtkCssCustomGadget *custom_gadget)
{
}
GtkCssGadget *
gtk_css_custom_gadget_new_for_node (GtkCssNode *node,
GtkWidget *owner,
GtkCssPreferredSizeFunc preferred_size_func,
GtkCssAllocateFunc allocate_func,
GtkCssDrawFunc draw_func,
gpointer data,
GDestroyNotify destroy_func)
{
GtkCssCustomGadgetPrivate *priv;
GtkCssGadget *result;
result = g_object_new (GTK_TYPE_CSS_CUSTOM_GADGET,
"node", node,
"owner", owner,
NULL);
priv = gtk_css_custom_gadget_get_instance_private (GTK_CSS_CUSTOM_GADGET (result));
priv->preferred_size_func = preferred_size_func;
priv->allocate_func = allocate_func;
priv->draw_func = draw_func;
priv->data = data;
priv->destroy_func = destroy_func;
return result;
}
GtkCssGadget *
gtk_css_custom_gadget_new (const char *name,
GtkWidget *owner,
GtkCssGadget *parent,
GtkCssGadget *next_sibling,
GtkCssPreferredSizeFunc preferred_size_func,
GtkCssAllocateFunc allocate_func,
GtkCssDrawFunc draw_func,
gpointer data,
GDestroyNotify destroy_func)
{
GtkCssNode *node;
GtkCssGadget *result;
node = gtk_css_node_new ();
gtk_css_node_set_name (node, g_intern_string (name));
if (parent)
gtk_css_node_insert_before (gtk_css_gadget_get_node (parent),
node,
next_sibling ? gtk_css_gadget_get_node (next_sibling) : NULL);
result = gtk_css_custom_gadget_new_for_node (node,
owner,
preferred_size_func,
allocate_func,
draw_func,
data,
destroy_func);
g_object_unref (node);
return result;
}

88
gtk/gtkcsscustomgadgetprivate.h Normal file
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@ -0,0 +1,88 @@
/*
* Copyright © 2015 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_CSS_CUSTOM_GADGET_PRIVATE_H__
#define __GTK_CSS_CUSTOM_GADGET_PRIVATE_H__
#include "gtk/gtkcssgadgetprivate.h"
G_BEGIN_DECLS
#define GTK_TYPE_CSS_CUSTOM_GADGET (gtk_css_custom_gadget_get_type ())
#define GTK_CSS_CUSTOM_GADGET(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_CUSTOM_GADGET, GtkCssCustomGadget))
#define GTK_CSS_CUSTOM_GADGET_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_CUSTOM_GADGET, GtkCssCustomGadgetClass))
#define GTK_IS_CSS_CUSTOM_GADGET(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_CUSTOM_GADGET))
#define GTK_IS_CSS_CUSTOM_GADGET_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_CUSTOM_GADGET))
#define GTK_CSS_CUSTOM_GADGET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_CUSTOM_GADGET, GtkCssCustomGadgetClass))
typedef struct _GtkCssCustomGadget GtkCssCustomGadget;
typedef struct _GtkCssCustomGadgetClass GtkCssCustomGadgetClass;
typedef void (* GtkCssPreferredSizeFunc) (GtkCssGadget *gadget,
GtkOrientation orientation,
gint for_size,
gint *minimum,
gint *natural,
gint *minimum_baseline,
gint *natural_baseline,
gpointer data);
typedef void (* GtkCssAllocateFunc) (GtkCssGadget *gadget,
const GtkAllocation *allocation,
int baseline,
GtkAllocation *out_clip,
gpointer data);
typedef gboolean (* GtkCssDrawFunc) (GtkCssGadget *gadget,
cairo_t *cr,
int x,
int y,
int width,
int height,
gpointer data);
struct _GtkCssCustomGadget
{
GtkCssGadget parent;
};
struct _GtkCssCustomGadgetClass
{
GtkCssGadgetClass parent_class;
};
GType gtk_css_custom_gadget_get_type (void) G_GNUC_CONST;
GtkCssGadget * gtk_css_custom_gadget_new (const char *name,
GtkWidget *owner,
GtkCssGadget *parent,
GtkCssGadget *next_sibling,
GtkCssPreferredSizeFunc get_preferred_size_func,
GtkCssAllocateFunc allocate_func,
GtkCssDrawFunc draw_func,
gpointer data,
GDestroyNotify destroy_func);
GtkCssGadget * gtk_css_custom_gadget_new_for_node (GtkCssNode *node,
GtkWidget *owner,
GtkCssPreferredSizeFunc preferred_size_func,
GtkCssAllocateFunc allocate_func,
GtkCssDrawFunc draw_func,
gpointer data,
GDestroyNotify destroy_func);
G_END_DECLS
#endif /* __GTK_CSS_CUSTOM_GADGET_PRIVATE_H__ */